Finding the Third Proportional to 1,139.63 and 2,493.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139.63 : 2,493.56 = 2,493.56 : x
2. Step 2: Convert to fraction form
   1,139.63/2,493.56 = 2,493.56/x
3. Step 3: Cross multiply
   1,139.63x = 2,493.56 × 2,493.56
4. Step 4: Simplify right side
   1,139.63x = 6,217,853.94
5. Step 5: Solve for x
   x = 6,217,853.94/1,139.63
6. Step 6: Final answer
   x = 5,456.05